And printing- machine



-(No Model.) v/ I 7 Sheets-Sheet 1. (1. W. DUDLEY.

COMBINED ADDING AND PRINTING MACHINE. No. 554,993. Patented Feb. 18,896..

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ANDREW BLEANAM. PHUTD-UTNQWASHINGI'UNJC.

(No Model.) 7 Sheets-Sheet 2.

G. W. DUDLEY.

COMBINED ADDING AND PRINTING MACHINE. No. 554,993. Patented Feb. 18,1896.

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A TTOHNE Y8.

'AIDREW dJSRANAM. PHUTO'UTNQWASHI NGTON. OIL

I (No Model.) 7 SheetsSheet 3. G. W. DUDLEY. COMBINED ADDING ANDPRINTING MACHINE.

No. 554,993' Patented Feb. 18,1896

lTNESS NVENTO George IKDuCZZQyT ATTORNEYS.

(No Model.)

7 she ts-Sheet 5.

G. W. DUDLEY. COMBINED ADDING AND PRINTINGMAGHINE.

Patented Feb. 18,. 1896.

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AN DREW EGRAHAM. PHOTO-W0. WASHINGTON. D11.

(No Model.) 7 Sheets-Sheet 7.

G. W. DUDLEY.

COMBINED ADDING AND PRINTING MAGHINB. No. 554,993. Patented Feb. 18,1896.

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ANDREW B.GRANAM. PHUTOUTNQV'ASHINGTDN. 0.0.

UNTTED STATES PATENT ()EErcE.

GEORGE \VFDUDLEY, OF CHARLESTON, \VEST VIRGINIA, ASSIGNOR TO THENUMEEOGRAPII MANUFACTURING COMPANY, OF SAME PLACE.

COMBiNED ADDING AND PRINTING MAGHINE.

SPECIFICATION forming part of Letters Patent No. 554,993, dated.February 18, 1896.

Application filed September 9, 1395.

To all whom it may concern:

Be it known that I, GEORGEWV. DUDLEY, of Charleston, in the county ofKanawha-and State of West Virginia, have invented a new and usefulImprovement in a Combined Adding and Printing Machine, of which thefollowing is a specification.

In an application for a patent filed by me January '7, 1895, Serial No.534,106, for a IO combined adding and printing machine, I have shown anddescribed an organization of devices whose object is to quickly andaccurately add a column or columns of figures, and at the same time andby the same manipulation of the keys to print upon a sheet of paperthese figures in the order in which they are added, so as to form aproof-sheet which shall verify the correctness of the addition, andwhich machine by special adjustments may be made to print at the bottomof the column the sum total of the column, and to do this work in avertically-descending progres'sion or vertically-ascending progressionor in a horizontal progression.

My present invention, while combined with the principal features of thatmachine, comprises certain new features which I designate generally asfollows First, an improved mechanism for causing the keys representingthe different digits to impart a variable throwv to the adding-wheelsand type-carrier; second, a means for dispensing with the strain on themachine of turning at one time a-number of the adding-wheels, whichbecomes necessary in carrying from one denomination to the next, forwhich purpose I provide a set of supplementary receiving-wheels to whichthe numbers to be carried are delivered in a oumth lative way until theaddition is completed on the main wheels, after which these accumulatednumbers on the supplementary receiving-wheels are added into the totalby a sub.- sequent adding operation; third, a novel organization ofdevices for spacing, adding and printing, or spacing without printingand printing without adding.

In connection with these general features of improvement otherimprovements of a minor character are also provided, which may be bestunderstood hereinafter by reference to the drawings.

served intact, only showing the new features the top of thebarrel K inthe direction of the arrow on this line.. Fig.

Scliai 1:0. 561,949. (No model.)

In the drawings hereto annexed, I have for the sake of avoidingcomplication and prolixity omitted such portions of the previous machineas remain unchanged and are preand such portions of the old as arecorrelated to the said new features.

Figure 1 is a plan view of the front part of the machine with theinclosing case removed, the ribbon paper carrying and feeding devices,all of which lie back of the line X X, (see Figs. 1, 2, and 4,) beingomitted, it being understood that the paper and printingribbon occupythe plane of the line X X. Fig. 2 is an inverted plan view showing allthe parts of the machine lying in front of the same line X X. Fig. 3 isa front elevation of the machine with parts broken away and parts shownin section. Fig. 4 is a vertical section taken on line 4 4: of Figs. 1and 2, looking in the direction of the arrow on said line. Fig. 5 is avertical section taken on line 5 5 of Figs. 1 and 2, looking in thedirection of the arrow on said line. Fig. 5 is a sectional detail takenthrough line 5 5 of Fig. 3. Fig. 6 is a vertical section of theeseapement mechanism, taken on line 6 (3 of Fig. 2 and looking in thedirection of the arrow on this line. Fig. 0 is a section through theescapement mechanism, taken on line 6 6 of Fig. 6 and looking in thedirection of the arrow on this line. Fig. 6 is a detail in perspectiveof Fig. '7 is a vertical section of the escapement mechanism, taken onthe line 7 7 of Fig. 2 and looking 8 is a vertical section through theaddingwheels, taken on line 8 S of Figs. 3 and 8, looking in thedirection of the arrow on said line. Fig. 8 is a sctional edge view ofthe adding wheels seen in Fig. 8 and shown partly in section on line 8 8of Fig. 8 and partly in side elevation. Fig. 9 is a sectional detailview of the means for locking the adding-wheels, taken on line 9 9, Fig.1; and Fig. 9 is a rear View of the same, looking in the direction ofthe arrow 011 Fig. 9.

I will first describe generally the external construction of themachine, and designate the location and functions of the several partsvisible on the outside of the machine.

Z Z Z Z, Figs. 1 and 3, are the four parts of the external case, whichfor convenience may be made in separate pieces.

B, D and N are the operating-keys. Of these keys the first one, D, onthe left bears a cipher and is not connected with the adding mechanism,but only with the printing mechanism. The middle keys, B, are nine innumber and bear on their faces the numerals 1. to 1, and all have thesame action and connections, and all operate both upon the adding andprinting devices when depressed. The key N on the extreme right is thespacing key and has no connection with the addingwheels, but onlyco-operates with the paperfeeding mechanism and has its own peculiarconnections.

F is a tilting thiu'nbq nece whose manipulation changes thedireetion ofthe feed of the paper-feeding devices from vertical to horizontal orvice versa.

E is a lOYOl'Sll'lg-lGVOl' for reversing the feed of the printingdevices and shifting backward or forward from one denomination of theaddin gwheels to another.

G is a pull-rod which when in one position causes the adding-wheels tomove forward to add, and when in another position causes theadding-wheels to move backward so as to subtract, and when in stillanother position throws out the adding devices altogether and allows theprinting alone to be effected.

I will first describe the action of the keys in determining the extentof movement of the adding and printing mechanism.

Referring to Fig. 5 it will be seen that the nun'iber-keys l; havehorizontal shanks or le' vers, which are loosely hung upon an axialshaft B and extend through slots in the section Z of the outer casing.On the inner ends of each of these levers are .formed two tappetarms band b. Each tappet-arm l) of each lever rests beneath and is arranged tolift a vertical stop pin U Each stop-pin slides through and guided by astationary hori zontal plate b and a deck-plate Z", the pins beingforced downward normally by helical springs I) surrounding the pins andbearing at their upper ends against the deck-plate and at their lowerends against a collar or flange on the pin.

43 (see Figs. 1, 3, l, and 5) is a reciprocating gage-slide arrangedhorizontally on the deck Z, just behind the part Z of the casing. Thisgage-slide is provided with a series of nine longitudinal slots 7/, (seeFig. 1,) through which the stop-pins IF may be made to protrude by thelifting action of the tappetarms b. This gage-slide serves by theseslots to give a different threw for each key to the add ing devices andprinting devices, which throw is exactly commensurate with the value ofthe number represented on the keythat is to say, referring to Fig. 1,the length of the slot b on the leftis taken as the unit of throw andeo-operates with key 1. The second slot If is twice as long andeo-operates with key 2.

The third slot 1) is three times as long as the first and co-operatcswith key 3, and so on throughout the nine slots Z1 and the nine keys.lVhen any one key, therefore, is depressed, as that numbered 2, forinstance, its stop-pin U rises in the second slot U of the reciprocatinggage-barll, and the latter has a longitudinal movement that is exactlycommensurate with the number-value of that key, the pin b stopping thesliding gage-bar B when the opposite end of slot If reaches it. Thedifferential movement of the gage-bar is made the means of imparting adifferential movement to both the adding and printing devices, as willbe hereinafter described. To explain how the gage-bar 13 moves] wouldstate that it is under the direct influence of a spring-motor. Thismotor is shown at M in Fig. 2, and is wound up through. a bevel-gear M,shaft MP, gear-wheel NE, and pinion M' bearing a squared shaft Mprojecting through the case to receive a wind- On the main shaft of themotor is a rigid gear-wheel M, which meshes with and. transmits motionto a pinion M which is fixed to the side of a gear-wheel. M, (see Fig.4, which latter gearwheel extends up through the deck Z of the machineand (see llig. l) engages with a pinion M" rigidly fixed on a. shaft M"This shaft M" is the medium for transmitting the power of the motor tothe adding devices, and the extent of this transmitted motion isLlCllOl'll'llllOtl through the gage-bar B with variable slots if, asfollows: On the front end of the shaft M is a rigid pinion N. (see Figs.3 and it) which lies in the plane of a double rack-bar ll". Thisrack-bar is slotted throughout its length, and its ends slide verticallyin the upturned ends l5 ll of the gage-slide ll but when movedlongitudinallyin a horizontal direction said rack.- bar causes thegage-slide 13* to move with it, because the said rack-bar is heldbetween the upturned ends 13 ll 1 of the gage-slide. \Yhen said rack-baris adjusted to its lowest position, as shown in full lines in Fig. 53,the top section of the double rack-bar engages wil h.

the top of the pinion M, and when said rackbar is adjusted to its upperposition the but tom section of said rack-bar engages with the botton'iside of said pinion. The pinion being strained in a given direction bythe power of the motor to which it is geared it will be seen that when.the rack-bar is down it, with the gage-slide 13, is driven by thepinion. in one direction, and when said rack-bar is up it is driven bythe same pinion in the opposite direction, carrying the gage-slide l1with it. To adjustthis rack-bar up and down at each operation of a key,two short cross-bars l; 13 (see Figs. 1,3, 4, 5, and 5) pass through theslot at opposite ends of the rack-bar, and are connected at theiropposite ends to the veri ical bars B B which pass through the deck Z,and are connected at their lower ends by a crossbar 13. (See Figs. 23,5, and 5"). Hellcal springs ll encircle the arms il and by pressingupwardly against the deck Z force them downwardly and bring down thecrossbars 13 B and rack-bar B and cause its up per teeth B to engage thetop side of pinion M To cause the lower rack-teeth B to engage thebottom side of the said pinion M the arms B are lifted by tappet-arms Brigidly fixed on a rock-shaft 13*, which has curved arms extendingdownwardly and connected at their lower ends by a horizontal shaft 13against which bear the tappet-arms b of each of the key-levers B, asseen in Fig. 5. The operation of these devices is as follows: lvhenevera key 13 is depressed, its downward movement causes its tappet-arm b tolift its particular stop-pin 11 up through its particular slot Z) in thegage-slide 13 At the same time the tappet-arm b of the said leverstrikes against shaft B and through curved arms 13, rock-shaft B, andlift-arms 13, vertical bars 13 and cross-bars B causes the rack-bar 3"to be lifted, engaging its lower teeth 13 with the pinion M The power ofthe motor is now free to turn the shaft M with the pinion M and propelthe rack-bar and gage-bar to the loft (in Fig. 1) a distance equal tothe length of the slot through which the stop-pin of the particular keyprotruded. \Vhen the key is released and rises the springs 13 force downthe vertical bars B and by bringing the rackbar down again reengage itsupper teeth with the pinion, and the latter being still under a rotarystrain in the same direction, but being engaged by the rack-bar upon theopposite side, gives to the rack-bar and gageslide B its returnmovement. Thus it will be seen that the stop-pins b and slots Z2 ofdifferent lengths in the gage -slide furnish means for causing eachkey-lever to differentially limit the extent of rotation of the shaft Mwhich transmits the motive power to the adding mechanism. It must beunderstood, however, ihat one half of this extent of movement in shaft Mis permitted by the forward movement of the gage-slide B and the otherhalf by the backward movement of the gage-slide, and this enables me tomake the slots 12 only half as long as they would otherwise require tobe.

When the gage-slide B returns to its normal position of rest its jar iscushioned (see Figs. 1 and bya buffer consisting of a cylinder B slidingin a support B and having a cushion at one end. This cylinder has aninternal flange B which bears against a helical spring B wound about astem B having a collar 13 This stem has a rigid milled disk B by whichit is rotated, and its end is screw-threaded and works through astationary nut B in the support 13. By turning the milled disk B withthe fingers the stem '3 is advanced into the cylinder and the cylinder,through the spring, is adjusted to stop the gage-slide B sooner or laterto properly adjust the stop-pins Z1 in the slots b and the pinion lll tothe rack-teeth B I will now proceed to describe how the adding devicesare constructed and rotated with a different throw from the motorthrough the shaft M as controlled by the keys B, as before described.

The motor M, Fig. 2, it will be remembered, transmits power throughgear-wheels M M M to the pinion M on shaft M which latter is allowed adifferent extent of rotation when each key is operated, corresponding inextent to the number represented by that key. This shaft M (see Figs. 1and 4) transmits motion to the crownwheel A of'the adding devices,either in a forward direction to add or in a backward direction tosubtract, or may be disconnected wholly from the adding devices, as whenit is desired only to print. These adjustments are eifected through thepullrod G, which has three notches g g g adapted to engage a tooth g onthe main frame to determine the positions of its adjustments. Thepull-rod G slides in guides g and carries an arm g acting upon a sleeveA to slide it back and forth on the shaft M This sleeve slideslongitudinally 011 said shaft, but rotates with it through a pin g (seeFig. 4) on the shaft, playing in a slot in the sleeve, and said sleevebears at one end a rigid pinion A and at the other a rigid pinion A, oneor the other of which may be engaged with the teeth of the crown-wheel Aor both be disconnected, according to the adjustment of the sleeve aseffected through the pull-rod G. Thus when the pull-rod is forced allthe way in, so that its outer notch, g engages the tooth g the pinion Aengages the crown-wheel A and turns the adding-wheels in one direction,and when the pull-rod is drawn out, so that its middle notch g engagesthe tooth g the pinion A engages the crown-wheel A and turns theadding-wheels in the opposite direction, and when the pull-rod is drawnall the way out, as indicated in dotted lines in Fig. 4, both thepinions A and A are out of engagement with the crown-wheel A and theoperation of the keys has no influence on the adding devices, but onlyworks the printing mechanism, as hereinafter described. l/Vhen theadding devices are thus disconnected from the operating devices saidadding devices are locked against accidental displacement as follows:The crown-wheel A is rigidly c011- nected to a spur-wheel A placedagainst its side on the same shaft A (see Figs. 1, 4, 9 and 0) and thespur-wheel A transmits the adding or subtracting motion to a pinion A011 the shaft A of the adding-wheels hereinafter described.

On the pull-rod G (seeFig. 4) is a pin g which engages a slot in an arm9 rigid on a short rock-shaft 9 (See Figs. 9 and 9%) This rock-shaft hasupon its opposite end a hook-shaped detent which, when the pullrod isdrawn out and the adding devices disconnected, passes into engagementwith the teeth of the spur-wlreel A, as shown in dotted lines in Fig. 9,and locks the adding devices against displacement.

I will now proceed to describe the adding devices, referring moreparticularly to Figs. 1, 3, 4c, 8, and S. The entire operation of thesedevices is effected through the rotation of the shaft A, one portion. ofwhich is shown in Fig. 9 with the gears connecting it to the motor andanother portion of which is shown in Fig. 8 in its relation to theaddingwheels A". This latter relation is substantially the same as thatheretofore shown and described in my previous application referred to,and

it consists of a hollow longitudinally-slotted shaft A in which slides ared A bearing a bit or teeth a which engages the teeth of an internalgear a rigidly connected to each one of the adding-wheels A These wheelsare arranged in the order of units, tens, hundreds, &e., and have twoseries of numbers on their faces, each series running from O to 9, andeach wheel carries at each half a rotation. These adding-wheels A areall loose on the shaft 1 except when individually coupled thereto forrigid rotation therewith, which is effected through the slide-rod A.Thus when slide-rod A is adjusted to cause its bit a to lie in the planeof and look into the internal gear-teeth a of any adding-wheel, thatadding-wheel is rigidly locked to the shaft A for rigid rotationthereby, because the bit a passes through the slot in shaft A and locksit to the said internal gear of that adding-wheel. This is the same modeof operation and substantially the same construction described in myprevious case and forms no part of my present invention. I have found,however, that when one adding-wheel acts upon the next adding-wheel incarrying tons in accordance with the decimal system there are times whenthe motor has to move a number of these large adding-wheels at once,which involves a tax. on the motive power that is liable to lead toimperfect and inaccurate work. I provide a means for overcoming this bydispensing with the carrying from one adding-wheel to the next, butcarry from each addii'ig-wheel to a corresponding supplementaryreceiving wheel, which receivingwheels store up the carried numbers, andwhen the addition is completed these stored-up carried numbers are addedinto the adding-wheels as a separate and subsequent operation. By thisarrangement each adding-wheel is only required, in carrying, to turn itsown receiving-wheels.

Referring to Figs. 8 and 8, A and A are two shafts arranged above andparallel to the shaft A of the adding-wheels. These shafts bear eachaseries of wheels A and A arranged side by side. They hear on theirfaces numbers 0 to f), and have a llange a with a corresponding numberof notches, which notched 'l'lange lies in the plane of a diametriealbar A which has a middle ring rigidly attached to the hub of eachadding-wheel A At each half-rotation of an adding-wheel A thisdiametrical bar A strikes a notch of the flange a of the receiving-wheelA and carries one to this receivingavheel, causing it to move one notch.At each complete rotation of a wheel A a lug a on its side (see Fig.strikes the notched flange of a companion wheel A above and turns it onenotch, so that when the carried numbers exceed ten they will beaccumulated and stored up on the wheels A of higher denomination above.The numbers of these two series of wheels A" and A appear throughopenings a and a" in the ease, as in Fig. 3, while the numbers of themain adding-wheels A appear through lower openings a. To hold thosereceivingwheels to the positions to which they are turned they havenotched peripheries and spring-detents a a drop into the notches todetermine and fix the limit of their move ments.

After an addition has been performed and the numbers carried by thesupplementary receiving-wheels A" and A have been added in, these wheelsrequire to be set back to zero, and for this purpose their shafts A andA carry pins to, (see Fig. 8%) which ordinarily lie within recesses onthe left side oi. the wheels A" and A These wheels have also on theiropposite sides pins 0 and when the shafts A and A are pulledlongitudinally to the left, as shown by dotted lines, their pins a passinto range of engagement with the pins (0 of the wheels, and by thenrotating the shafts A and A the wheels A" and A may be restored to zero.These features, however, are not new and I make no claim to the same.

Referring now to Figs. 1, S, and whenever the bar A is adjusted to bringits bit a into locking engagement with an addingwheel A an index-plate(1 Figs. 1 and b, is made to simultaneously appear through a 1101c (L12,Fig. at, in the case to show in what order the adding is being done.This indexplate is on a red A, (see Fig. i),) just above the bar A, andconnected to and operated simultaneously with it by a post A, Figs. 1and 9, exactly in the manner described in my previous application. Thispost is attached to and moved by a rack-bar A, beneath the deck of themachine, as shown in Figs. 8, 9, i, and This rack-bar is also providedon its end with a double-inclined cam A, which acts upon an elbow-leverA, Figs. 2 shaft A and deflects it, as shown in dotted lines, to causeits other end to become disengaged from the notches n in the side of theadding-wheels, so that the adding-wheel upon which the addition is beingperformed is free to be turned, while all the other addingwheels arelocked by their elbow-lever detents A. This mechanism is alsosubstantially as shown and describedin my previous application and neednot be further described, except to say that this rack-bar Asimultaneously moves red A carrying the index-plate a, wheellocking barA, and dctent-releasihg cam A, while the rack-bar and 8, fulcrumed on ahorizontal ISO IIO

itself (see Fig. 2) meshes with and is moved by a pinion P, clutch P,shaft O", and reversible gear C C 0 on shaft C from a motor C all asshown in my previous application.

In performing an addition of columns of figures, if a series of figuresin a column aggregate less than one hundred the numbers to be carriedwill only turn the lower series of receiving-wheels A, but if thefigures in a column to be added aggregate one hundred or more then theadding-wheel A will turn its receiving-wheel A" to store up the carriedtons and will also turn the receiving-wheel A (through lug a, Fig. 8) tostore up the carried hundred or hundreds, so that in no case will anyadding-wheel be required to move more than two other wheels, andgenerally where the column footed up is less than one hundred it willneed to turn only one of the wheels A After the addition of the col umsis completed, then the figures showing through openings a Fig. 3, areadded into the addingvheels A by a manipulation of the keys, and so alsowith the numbers showing through the openings at, provided there be anyshowin g. The numbers showing through these openings represent thecarried numbers and are added each into its correspondingdenomination-wheelbelow to indicate the grand total at the openings dThus for illustration, referring to Fig. 3, after the addition of thecolumns to be added has shown a total at openings a, as 9 9 9 9 9 9 9,and stored up carried numbers in tens show at a as 3 2 6 4 2 2, the 2 isadded to the 9 of the tens-adding wheel A immediately below it, (bydepressing key marked 2,) making 11, of which 1 is made to show on thetens-wheel A through its opening a and 1 is carried to the next wheel Amaking its figure 2 to be 3, and 3 is then added to the 9 of thehundreds-wheel A immediately below it, (by depressing key marked 3,)making 12, of which 2 is made to show on the hundredswvheel A and l iscarried to the next wheel A making its figure 4 to be 5. This figure 5is then added to the 9 of the thousands-wheel A immediately below it,(by depressing key marked 5,) making 14, of which the 4 is made to showon this thousandsqvheel A and the l is carried to the next wheel A,making its figure 6 to be 7,- which in turn is added to thetens-of-thousands-wheel A below, and so on. In this operation it is tobe understood that the locking-lug a is always adjusted into the planeof the adding-wheels A to which the carried number is to be added. Inthe same way the numbers showing at ct on the carried-hundreds wheels A(if any exist) are added to the adding-wheels A immediately below themof the proper order, until the carried numbers are all added in tocomplete the total.

I have already described how the movement of each key controls the throwof the adding-wheels through the gage-bar B, the stop-pins b and slots 5of varyinglength, as

shown in Figs. 1 and 5. These same devices control the throw of theprinting-type levers and their carrier, which I will now proceed todescribe, referring more especially to Figs. 1 and 5.

T, Figs. 1, 3 and 5, are the type -levers, which are shaped like theletter 2 with a print-in g-type t at the upper end and an impactarm t atits lower end. These levers are fulcrumed upon a curved bar 15 on theouter end of a segmental type-carrier T. This carrier has a rest-bar tagainst which all the typelevers are supported, and against which theyfall back after having delivered a printingblow. The segmental typecarrier T is formed on the upper end of ahollow sleeve T turning upon avertical post '1 mounted upon the deck Z The lower end of this sleeve isprovided with a rigid arm T' having a toothed segment i" that is engagedby a corresponding toothed segment 15 on an offsetting-plate T rigidlyfixed to the reciprocating gage'bar B, so that when this gage-bar, underthe influence of the motor M and controlled by the keys, reciprocatesits segmental plate T acting through the segmental gear 15* i on the armT" and the plate T gives to the type-lever carrier T a throw that isexactly commensurate with the movement of the gage-bar as controlled bythe slots b and this throw of the type-carrier T in a horizontal planebrings the proper one of the type-levers to the printing position. Forinstance, if key No. 5 be depressed it not only moves the adding-wheelsfive notches, but it also swings the type-carrier T to a position thatbrings the type-lever T, bearing figure 5, to the printing position.When so brought to a position an impact-bar M (see Fig. 5) suddenl yrises and striking the arm i of that type-lever throws it forwardagainst the typeribbon R to print, as shown in dotted lines. The meansfor operating this iinpact-bar are the same as those shown in myprevious patent and need not be here described, as they have nothing todo with my present improvements.

I will now proceed to describe how the keys operate upon the printingmechanism to do the printing and effect the feeding or spacin g. This isaccomplished through the agency of the spring-motor C (see Fig. 2,)whose power is controlled and expended intermittently through anescapement mechanism and is transmitted through a reciprocating rod M tothe impactbar M, Fig. 5, through the crank M rockshaft M and crank 0just as in my former case, and through the rotary shaft 0 to thepaper-feeding devices, just as shown in my former case. The escapementmechanism itself is, however, entirely differcut and I will now proceedto describe this, referring more especially to Figs. 2, 6 and 7.

Refering to Fig. 2, the shaft C of motor 0 is provided with a rigidgear-wheel G which turns pinion rigid on the shaft C This pinion isrigidly formed with a disk N Fig. 6, which has a sleeve on its side(opposite the pinion) bearing a single ratchet-tooth m". (See Figs. (3and 7.) This ratchettooth engages a pawl m fulcrumed on a loose disk N(see Fig. 7 the end of said pawl lying across a notch d in the peripheryof a disk N which turns loosely on shaft C except when pawl m engagesratchet-tooth m, at which time the disk N is geared rigidly to shaft Cthrough the rigid disk N and pinion C 011 the side of the disk i" thereis formed a pinion N Figs. 6 and (3, which engages with a gear-wheel Nrigid on a countershaft N. Beside this gear-wheel is a 1101- low casingN (see Fig. (5%) containing acoilspring N, the inner end of which isconnected to the shaft N and the other end of which is connected to thehollow casing N This hollow casing has on its outer periphery a seriesof separated or spaced teeth a which catch against a lug a on the end ofthe horizontal reciprocating rod M and move it to the right. This is thesame rod which operates the impactbar M, Fig. 5, as described in myprevious case, and when this bar M is drawntoward the right in Fig. U bya tooth or a link a, pivoted to the bottom of the deck Z and also to redM lifts the lug it atthe end of the movement off of the tooth n, and aspring (not shown in this case but shown in my previous case) draws therod M to the left again.

The hollow casingi moves intermittently a space equal to the distancebetween the teeth a, and its actuating power is that of the motor 0 Fig.2, whose energy is stored up in the coil-spring N and intermittentlyallowed to assert itself on the rod M by an es eapement set into actionby the keys, as fol lows:

ll, Fig. (5, is one of the key-levers which, when depressed, strikes adepressible yokeframe composed of horizontal bar 15* and arms 13,rigidly fixed to the rock-shaft R, which also has attached to it twopallet-arms N K (see Figs. 5, 6, and 7) also rigidly attached to saidrock-shaft R and depressible frame W 15 These pallet-arms N N' haveengaging-spurs a n, and when the palletarms move downwardly the upperone, it engages a teeth 11, and the lower one, 11*, passes out ofengagement of said teeth, and vice versa, to constitute an intermittentescapement for the hollow casing N There is also rigidly attached to therock-shaft R another escapement consisting of a rigid arm M, which hastwo lugs m an adapted to stop alternately against two pins m 'm/ on theside of the disk h -that is to say, normally pin m rests against lug m,but when. arm M moves outwardly in obedience to the depression of a key]:3 lug m is taken away from pin on" and the latter passes between thelugs, while lug m is brought into range of pin m and still holds thedisk; but when arm M moves inwardly again pin m passes also between thelugs, and the disk N being then unrestrained turns a complete rotation,

rotating (through its pinion N the gearwheel N and winding up therigidly-attached. shaft N and coil-spring N". It will therc fore be seenthat the effect of the depression of a key B is (see Figs. (.3 and U) torelease disk N and allow the power of the motor ti through pinion C toturn disk N and shaft 0" one rotation, and also to wind up throughpinion N and gear N the spring N", and also further through thedouble-armed pallet N N to allow the stored-up-energy in spring N" to beexpended to give an impulse on the rod H" that operates the impact-bar?and causes it to lift and operate a printing-type, as heretoforedescribed.

The above described act ion takes place whenever a key 13 is depressed.to operai 0 both the printing and adding mechanism.

It is sometimes necessary, however, to space withoutadding or printing.To do this 1 provide a special spacingdcey N. This does not act on thedepression-frame B 13" at all, but is held up by a spring 1) and whendepressed acts upon a pin (1 on a curved extension in of the arm M".This arm M is articulated at d to the arm M which is rigid on shaft R,and a spring (1' Fig. 7, holds the two arms M lll together as one exceptwhen the spacekey N is depressed. \Vhen this occurs, the toothed innerend N of this space-key enters the notch d' .in disk N andstrikingagainst pawl-lever m removes its end from the ratchet-tooth m".At the same time the sparse-key N strikes the pin (1, and pulling backarm M about its center 17*" allows the following action to take place:First, it unlocks diskh from disk N by deflecting pawl m thereby leavingthe train of mechanism N N" N N stationary, while the power of the motoraci ing on shaft 0 is intermittently expended through escapement M" m in-m m to turn shaft 0 alone, and through the gears t (1 0 Fig. 2, toturn-shaft C" and space or feed the paper of the printing mechanism, asdescribed .in my previous case.

It is necessary at times to operate the adding mechanism withoutoperating the printing IIlOClIZNIlSIIl-HS, for instance, when thecarried numbers which are temporarily stored. up on the supplementaryreceiving-wheels are to be added into the sum total--and I. will nowdescribe how this is effected.

K, Figs. l. and 3,1is a vertically-adjustable key which when pulled upis negative in effeet, but when forced down locks the printing mechanismand allows the adding alone to proceed from the operation of the keysl3. This adjustable sliding key K (see Figs. 3), ti, and 7) has a stem Kthat descends through an upright barrel K whiehbarrel ismouni ed. in thedeck Z", and said key-stem at its lower end is jointed to a lever K",fulcrumed at in a hanger li and having a forked end A? projectinglaterally. Ordinarily the stem li is held up by a helical spring 1Cwithin. the barrel K, which spring bears against a collar on the stem,but when the stem is forcedv down against the tension of said springpins on the stem K are caught beneath a stationary catch 71) (see Fig.(3) on top of the barrel, and said stem so held depressed aslong as maybe desired. When so depressed, (see Fig. 7,) it forces down lever K, andits forked end 7r grasps and holds a pin k on the disk N and at the sametime throws lever-pawl m out of engagement with tooth 411*. This actionmakes disk N loose on shaft C and while locking it against turningpermits shaft C under the influence of the motor to be turned to operatethe adding devices, the es capement M m m being operated to space in theaddingwheels by the working of the depression-frame B B which latterthrough its shaft R is rigidly connected with escapement-arm M carryingescapement M 'm on. hen this action takes place, the depression of leverK is made to hold the hole low disk N so that the pallet-detents n a donot lose their position against the teeth a, and for this purpose atemporary restrainingdetent 7a is attached to lever K, (see Figs. 2, 6,and 7,) and when the lever K descends this detent k engages one of theteeth at, and forcing back slightly the disk N allows the pallet-detentsn a when rocked away from their hold on teeth 71 (by the rocking ofshaft R) to regain their hold on the same tooth.

It will be remembered that the addingwheels are rotated one half the wayby the advance of the gage-slide B and the other half of the way by thereturn of the gage slide, and in spacing horizontally in adding it isobvious that the spacing must not take place at any time during theadvance or return movement of the gage-slide. I make the spacing throughthe devices hereinbefore described to take placejust at the end of thereturn stroke of the gageslide and provide means for holding the spacingdevices until said gage slide has completed its return stroke asfollows:

' Referring to Figs. 1 and 7, L is a lever arranged horizontally on thedeck Z and fulcrumed at Z. This lever has on one end a toe Z, that isadapted to be struck by the return movement of the gage-slide arm 13 anddeflected as shown in Fig. l. A helical spring Z serves to pull thelever in the other direction. Vhen this lever is occupying a position atright angles to the gage-slide, as it does when the gage-slide isperforming its stroke, a hook Z (see Fig. 7) on the end of this leverwill lie in the plane of the escapement-disk N, and will catch against apin Z on the periphery of this disk and hold it against rotating; butwhen the gageslide 13 has about completed its stroke, just before itstops it strikes against the toe Z of lever L and deflecting the latterremoves its hook Z (see Figs. 1 and 7) from the plane of escapement-diskN and allows the spacing then to take place without interfering with theother devices. Beside the lever L is arranged a spring-detent Z whichengages with a notch on the disk N and prevents it from moving backward.

D, Figs. 1, 2, 3, and 4, is the cipher-key. This is held up by a springD and has a projection D which when the key is depressed strikes the barB of the depressionframe and deflects the latter against the tension ofits spring 13 This key does not affect the adding devices at all, butonly op erates the impact-bar M of the printing devices against thefirst type-lever T, which is a cipher, and for which the carrier T doesnot need to be moved, as this first (or cipher) type stands norm ally inthe printing position.

In performing additions it is desirable to have some means for lockingthe keys at the end of an operation, so that in case the operator ismomentarily called away, there can be no possibility of any meddlingperson operating a key and thereby falsifying the addition. To provideagainst this disastrous contin gency, I arrange a locking device whichlocks all the keys whenever the index-plate a is carried back to thezero-point or place of beginning. This index-plate it will be rememberedis connected through its rod A and post A, Fig. l, with the rack-bar Acarrying the cam A which acts upon the adding-wheels A This rack-bar A",I provide with a lug w, (see Figs. 2 and 5,) which is adapted to strikean arm 10 on a rock-shaft W, journaled in bearin gs underneath the deckZ parallel with the key-levers. This shaft is turned in one direction bya spring w at its back end and at its front end has a radial arm W, (seeFig. 5,) that enters a notch in a sliding locking-bar V which moves onguides 204 parallel with v and immediately behind the front part of themachine. This locking-bar has in its upper edge (see Fig. 3) slots 10which normally he immediately beneath the key-levers, so that when thelatter are depressed they can enter said slots and make their completestroke, but when the locking-bar W is slid lengthwise these slots passout of coincidence with the key-levers and lock the latter so that theycannot be depressed. This sliding lockingbar is actuated by the arm IVof the rockshaft IV which is held in the normal position of use by thespring 10 but when the rack bar A is moved back to the point ofbeginning, where its cam A does not act upon any of the detents of theadding-wheels, then lug w, (see Figs. 2 and 5,) acting upon arm w ofrock-shaft IV, turns the latter against the tension of its spring andthrough its arm \V' at the front slides the locking-bar IV to itslocking position where it remains until the cam A on the rack-bar isadvanced to it's co-operation with the units-wheel of the series ofadding-wheels A preparatory to adding again.

In defining my invention with greater clearness I would state that I amaware that a slotted gage bar having slots of different lengthscorresponding to the different values of the different keys hasheretofore been em- IIO ployed in connection with stops protrudingthrough these slots and acting as cams to positively and directlyactuate the gage-bar with a definite throw, and I make no claim to this.In my invention relatively heavy adding wheels and printing devices areto be actuated, and it is necessary to employ a motor incontradistinction to utilizing the direct action of the key-levers, andmy slotted gageba-iain this combination only acts as an escapement toregulate the intermittent expenditure of power from the motor to theaddingwheels.

I am also aware that a locking-bar for locking the key-lever. againstaccidental move ment is .not new; and I only claim in this connectionthe special construction and arrange ment of parts whereby thekey-levers are auton1atically locked when the adding devices are broughtback to the starting-point.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1.. In a key-operated adding-machinc, the combination of theadding-wheels and a motor for actuating them; a set of key-levers, a setof stop-pins operated upon, by the key-levers, a reci proeatin ggage-slide having slots of dillerent lengths corresponding to the sizeof the digits and adapted to be penetrated by the stop-pins and agearing connecting this reciprocating gage-slide to the train of gearsbetween the motor and adding-wheels to differentially limit the extentof rotation of the motor-gears in their action upon the addingwheclssubstantially as and for the purpose described.

2. In a key-operated adding-machine, the combination with theadding-wheels, a motor for actuating them, and a set of key-levers; of athrow-regulating device consisting of a reciprocating gage -bar having arange of movement equal to one-half of each complete advance movement ofthe adding-wheels and geared to permit movement of the adding devicesboth on the advance and return stroke of the gage-slide substantially asand for the purpose described.

In a key-operated adding-machine the combination with the adding-wheelsa motor for actuating them, and a set of key-levers of athrow-regulating device for the motor consisting of a reci n'ocatinggage-bar having slots of varying length corresponding to the size of thedigits, a set of stop-pins adapted to be protruded through said slots bythe keylevers, said gage-slide being geared to the actuating-motor andarranged to allow it to positively expend its power in the samedirection upon the adding-wheels both on the forward and backwardmovement of the gageslide substantially as and for the purposedescribed.

l. The combination with the reciprocating gage-slide, havin slots ofdifferent length, stop-pins penetrating said slots and key-leversoperating the pin; of means for reciprocating the gage-slide consistingof a horizontal double rack-bar having means for giving an up-and-downadjustment a pinion arranged in said rack-bar to engage alternately withopposite sides thereof and a shaft car rying said pinion and gearedtolhe motor substal'itiallyas and for the purpose described.

5. The combination of the reciprocating gage-slide having slots ofdifferent lengths, stoppins penetrating said slots, a horizontal doubleraclvbar having an up-ztnd-down movement in the gagebar a pinionarranged 011 the rack-bar and geared to the motor, a rocking frame with.lift-arms and means for connecting with the rack-bar forgiving itsupand-down movement, and key-levers having each two tappet-arms oneengaging with the stop-pins and the other with the rocking frame andrack-adjusting mechanism substantially as and for the purpose described.

0. The rack-bar-adjusting mechanism consisting of the combination withthe hey-levers having tap :)et-arm I); of the rocking frame 13 B Bhaving lift-arms 13*, the yokeframe 13 '3 i 3 with springs 13 connectedto the rack-barsubstantiallyas and for the p11 rpose described.

7. In an adding or printingmachine having a reciprocating gageslide ofvariable throw, the combination with the reciprocating gageslide of anadj ustable bu mper adapted to ii 111 it the return stroke of the slideand adjust it in relation to its co-operating parts substantially asshown and described.

8. In an adding or printing maehinehaving a reciprocating gage-slide, ofvariable throw, the combination with said slide of a bumper consistingof a cylinder having an internal flange i3 and a cushion at its end, ascrewstem il with collar B and milled disk 13, a helical spring arrangedin the cylinder between the flange B and'the collar 13 of the stem and asupporting-frame embracing the cylinder at one end and having ascrewthreaded nut B at the other end engagii'ig with the threaded stemsubstantially as and for the purpose described.

9. The combination with the oscillai ing typecarrier and the addingdevices; of a motor for actuating both, a gage-slide having slots ofdifferent lengths in the same, gearin for connecting the motor to thegage-slide, gearing for connecting the type-carrier to the gage-slide,stop-pins adapted to penetrate the slots in the gage-slide, andkey-levers for operating said stop-pins substantially as and for thepurpose described.

10. The combination of theZshaped typelevers T, the typecarrier T withcurved axial shaft i and rest 6 the sleeve 'l seenred at its upper endto the type-carrier and having an arm 1" with segment-teeth. t at itslower end, an axial post T and the gageslide B having attached to it anarm T" with segment-teeth 6 arranged to mesh with and oscillate the armof the type-carriersubstantially as and for the purpose described.

11. In an adding-machine, the combination of the adding devicescomprising a series of wheels of different denominations, the adding-keylevers, a locking-bar for the same, a shifting device moving from oneaddingwheel to another automatic mechanism connected to the shiftingdevices and also to the locking-bar and arranged to adjust the latter toits locking position when the adding devices are moved back to thestarting-point substantially as and for the purpose described.

12. The combination with the adding-key levers B; of the sliding andslotted lockingbar 7 arranged beneath the levers, the rock shaft WVhaving arm TV at its front end engaging the locking-bar and arm w at itsback end, a spring for rocking said shaft in one direction, and therack-bar A with lug w for acting upon the arm w of the rock-shaft andmoving it in the other direction, said rack bar being connected to theadding devices substantially as shown and described.

13. In an adding-machine, the combination of the adding-Wheelsrepresenting units, tens, hundreds, &c., disconnected from each other byany carrying mechanism; a motor with connecting mechanism extending toand operating the adding-wheels; a throw-limiting mechanism connectedwith the motor, keys, and adding-wheels; numbered keys controlling thethrow-regulating mechanism to regulate the throw as effected by themotor; a separate set of supplementary receiving-wheels for storing upthe carried numbers from each adding-wheel, and carrying devices forconnecting the adding-wheels to their respective carrying-wheels,whereby the carried numbers are separately registered 011 the saidreceiving-wheels, and the motor is relieved from the excessive andvariable strain of causing one adding-wheel to turn a portion or all ofthe other adding-wheels, substantially as de scribed.

14:. The combination of the adding-wheels A having two series of figureson their peripheries, the wheels being disconnected from each other byany carrying mechanism and having each a projecting hub; a rigiddiametrical bar A having a middle ring embracing the wheel-hub andrigidly attached to it; the separate set of receiving-wheels A arrangedon a separate axis beside the addingwheels and having notched flanges aoperated upon by the bar A and means for setting the wheels A back tozero substantially as and for the purpose described.

15. The combination of the adding-wheels A having rigid diametrical barA the separate set of receiving-wheels A having notched flanges a?operated upon by the bar A and also a lug a on its side and a secondseries of receiving-wheels A of higher denomination, and means forsetting these receiving-Wheels to zero substantially as and for thepurpose described.

16. The adjusting mechanism for adding,

subtracting, or throwing out of gear these devices consisting of thepull-rod G with arm g slotted sleeve A with pinions A andA,

actuatin g-shaf t M havin g a slot-and-key connection with the sleeve,the crown-wheel A and spur-wheel A connected with the addingwheels, andthe motor for rotating. shaft M substantially as and for the purposedescribed.

17. The means for locking the addingwheels consisting of the combinationwith pull-rod G having pin 9'; of a slotted arm 9, rock-shaft g rigidlyattached to said arm and bearing a pawl 9 adapted to engage one of thegear-wheels in the adding-train substantially as and for the purposedescribed.

18. Theescapement mechanism for delivering the power of the motorintermittently to the printing and paper-feeding devices, consisting ofthe rocking depressible frame B B R acted on by the keys and carryingrigid pallet-arms N N, the counter-shaft N with loose hollow disk Nhaving teeth 07. and a coil-spring N connecting the disks to the shaft,gear-wheelN rigidly fixed on the counter-shaft, the motor-shaft C withrigid disk N having pins 111 wi loose disk N detachably locked to disk Nand the escapementarm M carried by the rocking frame B B R,substantially as and for the purpose described.

19. The combination with the escapement mechanism described having rigiddisk N 4 with pins m m and ratchet-tooth m the loose disk N having notch(Z and detent-lever m, the articulated escapement-arm h 19 with lugs m mand arm m having pin d, and the spacing-lever N with toothed end Nadapted to act on pin (1 and also enter the notch (Z and disengage thelever-pawl m substantially as and for the purpose described.

20. The combination of the hollow disk N with teeth or spring N and gearN the rock the spring-actuated stem K jointed thereto and the pawl 7tmounted on the lever K and adapted to engage and temporarily hold theteeth 72. substantially as and for the purpose described.

21. The combination with the impact-bar of the printing devices; of theactuating-bar M having lug n, and a suspending hanger-link n and theescapement-disk N with teeth n adapted to catch against lugn and pullback bar M and then allow the latter to automatically disengage itselfsubstantially as shown and described.

22. The combination with the reciprocating gage-slide B operating tomove the adding devices by both its forward and backward movements; of aspacing mechanism, a leverdetent for holding it against spacing, saiddetent being arranged at the end of the return stroke of the gage-slideto be operated thereby and release the spacing devices after the throwof the adding devices substantially as and for the purpose described.

23. The combination with the reciprocating gage-slide 13 operating tomove the adding devices by both its forward and backward move1nents,aspacing mechanism as described consisting of an intermittently-actingescapement with pin Z, a detent-lever L for holding said pin, said leverbeing arranged at the en d

